一、電池片回收有什么作用
1、減少對環境的污染壓力
如今,隨著社會經濟的發展,社會環境正面臨嚴峻的考驗。一方面,不可生資源的數量正在減少。另一方面,一些污染現象還在不斷破壞環境的平衡結構。比如說部分人隨意丟棄廢舊的電池片。這種情況下,會(hui)對環境的土壤、水(shui)源(yuan)等(deng)產(chan)生嚴重危害。
2、提高資源的使用效率
廢舊電池(chi)片并不是沒(mei)有用(yong)途(tu),其實(shi),廢舊電池(chi)片可以(yi)被再次利用(yong),從而可以(yi)提高(gao)資(zi)源的使用(yong)效率(lv),尤其是一些不可再利用(yong)的資(zi)源能夠(gou)得到較好的保護(hu),既能夠(gou)延(yan)長資(zi)源的使用(yong)時限,還能降低部分物(wu)資(zi)對環(huan)境造成(cheng)的污染(ran)。
3、節省了一定的生產成本
從電池片(pian)回(hui)收公司(si)了解(jie)到,他(ta)們使(shi)用(yong)廢(fei)舊電池為(wei)原料,生產新的電池成(cheng)本得(de)到了大幅(fu)度降低(di),實現了“雙贏”的局(ju)面。
在(zai)日常的(de)工作(zuo)生活中,建議大家要妥善處(chu)理好廢舊(jiu)電(dian)池(chi)片(pian)(pian)(pian),尤其(qi)是不能隨(sui)意處(chu)置,比如說丟棄在(zai)垃圾堆里,那樣將會造成(cheng)很大的(de)危害(hai),盡(jin)可(ke)能將廢舊(jiu)電(dian)池(chi)片(pian)(pian)(pian)收(shou)集起來送到(dao)電(dian)池(chi)片(pian)(pian)(pian)回(hui)收(shou)公司,在(zai)實現廢舊(jiu)電(dian)池(chi)片(pian)(pian)(pian)回(hui)收(shou)的(de)同時,對保(bao)護(hu)環境(jing)起到(dao)了很好的(de)作(zuo)用(yong)。
二、電池片回收范圍
電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)片(pian)(pian)(pian)回(hui)(hui)收(shou)(shou),多(duo)(duo)(duo)晶(jing)(jing)電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)片(pian)(pian)(pian)回(hui)(hui)收(shou)(shou)、單(dan)晶(jing)(jing)電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)片(pian)(pian)(pian)回(hui)(hui)收(shou)(shou)、太(tai)陽(yang)能電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)片(pian)(pian)(pian)回(hui)(hui)收(shou)(shou)、碎電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)片(pian)(pian)(pian)回(hui)(hui)收(shou)(shou)、125*125單(dan)晶(jing)(jing)電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)片(pian)(pian)(pian)回(hui)(hui)收(shou)(shou)、125*125多(duo)(duo)(duo)晶(jing)(jing)電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)片(pian)(pian)(pian)回(hui)(hui)收(shou)(shou)、156*156單(dan)晶(jing)(jing)電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)片(pian)(pian)(pian)回(hui)(hui)收(shou)(shou)、156*156多(duo)(duo)(duo)晶(jing)(jing)電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)片(pian)(pian)(pian)回(hui)(hui)收(shou)(shou)、高/低效太(tai)陽(yang)能電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)片(pian)(pian)(pian)回(hui)(hui)收(shou)(shou)、缺(que)角(jiao)/崩邊(bian)電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)片(pian)(pian)(pian)回(hui)(hui)收(shou)(shou)、廢電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)片(pian)(pian)(pian)回(hui)(hui)收(shou)(shou)、太(tai)陽(yang)能電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)裸片(pian)(pian)(pian)回(hui)(hui)收(shou)(shou);銀(yin)(yin)(yin)漿回(hui)(hui)收(shou)(shou),擦(ca)銀(yin)(yin)(yin)布回(hui)(hui)收(shou)(shou),銀(yin)(yin)(yin)擦(ca)布回(hui)(hui)收(shou)(shou),銀(yin)(yin)(yin)漿罐回(hui)(hui)收(shou)(shou),太(tai)陽(yang)能電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)板等(deng)一(yi)切硅材料回(hui)(hui)收(shou)(shou)。
三、太陽能電池片怎么進行回收
電池片可(ke)以回收,可(ke)以從太陽(yang)能(neng)電池中回收純硅(gui)。
太陽能電池主要含有硅(約91.6%重量)。它還包含其他材料,例如底層的鋁,頂層的銀電極,以及頂層的鉛和抗反射涂層。p型和n型硅晶片位于抗反射涂層和鋁層之間。太陽能電池片藍色(se)層(ceng)是抗(kang)反射涂(tu)(tu)層(ceng)(SiNx),白線(xian)是銀(yin)電(dian)極。太(tai)陽能(neng)電(dian)池片(pian)的(de)底(di)部為鋁(lv)層(ceng)。為了去(qu)除(chu)這些材料(鋁(lv)、銀(yin)、鉛和抗(kang)反射涂(tu)(tu)層(ceng)),需使用化學處理(li)方法。
首先(xian),氫(qing)氟(fu)(fu)(fu)酸(suan)(suan)或氫(qing)氟(fu)(fu)(fu)酸(suan)(suan)與其(qi)他化(hua)學(xue)品(pin)的混合(he)物用于去除太(tai)陽(yang)能(neng)電池的抗反射(she)涂層(ceng)、銀(yin)、鉛和(he)pn結(jie)。由于氫(qing)氟(fu)(fu)(fu)酸(suan)(suan)是劇毒和(he)腐蝕性化(hua)學(xue)品(pin),因此在目前(qian)的工作中不再使用氫(qing)氟(fu)(fu)(fu)酸(suan)(suan)。每一層(ceng)都使用化(hua)學(xue)處理(li)一層(ceng)一層(ceng)地去除。
用(yong)濃NaOH溶液(ye)(ye)處(chu)理(li)(li)后(hou)去除鋁(lv)(lv)層(ceng)。在反應過(guo)程中形(xing)成(cheng)的氫氣被(bei)收集(ji)在一個腔室中并可用(yong)作(zuo)燃料。通過(guo)過(guo)濾從NaOH溶液(ye)(ye)中分(fen)離氫氧(yang)化(hua)鋁(lv)(lv)。類(lei)似(si)地,通過(guo)用(yong)HNO3處(chu)理(li)(li)去除銀和鉛。收集(ji)釋放的NO2并可用(yong)于生(sheng)產硝酸。分(fen)離硝酸銀,溶液(ye)(ye)用(yong)HCl處(chu)理(li)(li),形(xing)成(cheng)氯化(hua)銀。濾出沉淀(dian)的氯化(hua)銀。此(ci)外,將溶液(ye)(ye)用(yong)NaOH處(chu)理(li)(li)以從溶液(ye)(ye)中分(fen)離鉛化(hua)合物(wu)(PbO)。氧(yang)化(hua)鉛轉(zhuan)化(hua)為氫氧(yang)化(hua)鉛,過(guo)濾沉淀(dian)的氫氧(yang)化(hua)鉛。